indexers: update indexer error types. #2770
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| if err != nil { | ||
| log.Errorf("%s: unable to disconnect block: %v", idx.Name(), err) | ||
| msg := fmt.Sprintf("%s: unable to disconnect block: %v", | ||
| idx.Name(), err) | ||
| return indexerError(ErrDisconnectBlock, msg) | ||
| } | ||
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| // Remove the associated spend consumer dependency for the disconnected | ||
| // block. | ||
| err = idx.Queryer().RemoveSpendConsumerDependency(dbTx, ntfn.Block.Hash(), | ||
| idx.consumer.id) | ||
| if err != nil { | ||
| log.Errorf("%s: unable to remove spend consumer dependency "+ | ||
| "for block %s: %v", idx.Name(), ntfn.Block.Hash(), err) | ||
| msg := fmt.Sprintf("%s: unable to remove spend consumer "+ | ||
| "dependency for block %s: %v", idx.Name(), | ||
| ntfn.Block.Hash(), err) | ||
| return indexerError(ErrDisconnectBlock, msg) | ||
| } |
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Not sure if intended, but this changes the behavior to return rather than just log errors and the update tip below is no longer always called.
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Yes it's intended, if disconnecting a block fails for the index it'd be inaccurate to update its tip. Also to keep things synchronized, if removing a spend consumer dependency generates an error for an index it should return.
| ErrBlockNotOnMainChain = ErrorKind("ErrBlockNotOnMainChain") | ||
| ) | ||
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| // Error satisfies the error interface and prints human-readable errors. |
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You can also check with var _ error = ErrorKind("") but I guess it will never change with just the one method.
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Deferring this for later if we decide it is better to be explicit about implementing the error interface throughout the codebase.
This updates the wire error types to leverage go 1.13 errors.Is/As functionality as well as confirm to the error infrastructure best practices outlined in decred#2181.
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This updates the wire error types to leverage go 1.13 errors.Is/As functionality as well as confirm to the error infrastructure best practices outlined in #2181.